.header {
    height: 1rem;
    background-color: #ff5555;
    color: #fff;
    position: relative;
    >span {
        position:absolute;
        top: 0.3rem;
        left: 0.3rem;
    }
    .title {
        line-height: 1rem;
        text-align: center;
        font-size: 0.34rem;
    }
}